AD5293BRUZ-50-RL7

Digital Potentiometers Overview

The AD5293BRUZ-50-RL7 is a single-channel digital potentiometer with 1024 tap positions and a nominal resistance of 50 kΩ. It features calibrated ±1% resistor tolerance in Resistor Performance Mode and operates on single supplies from 9 V to 33 V or dual supplies from ±9 V to ±16.5 V. The device utilizes an SPI-compatible serial interface for wiper setting control and readback. Key electrical parameters include a rheostat mode temperature coefficient of 35 ppm/°C, a voltage divider temperature coefficient of 5 ppm/°C, and a logic supply range of 2.7 V to 5.5 V. It is housed in a 14-lead TSSOP package and supports an extended industrial operating temperature range of −40°C to +105°C.

Digital Potentiometers Feature Summary

• Single-channel architecture with 1024-position resolution and 50 kΩ nominal end-to-end resistance.
• Calibrated ±1% resistor tolerance in Resistor Performance Mode for precision applications.
• SPI-compatible serial interface supporting data transfer rates up to 50 MHz.
• Operates on single-supply (9 V to 33 V) or dual-supply (±9 V to ±16.5 V) configurations.

Digital Potentiometers Applications

• Mechanical potentiometer replacement
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion
• Sensor calibration

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging type and tape-and-reel specifications. Confirm that the component meets RoHS compliance requirements for the intended deployment environment. Ensure the selected variant matches the required resistance tolerance and temperature coefficient specifications for the application.

Digital Potentiometers Selection Notes

Select this component when high-voltage operation up to 33 V is required alongside precise resistance matching. The 50 kΩ value provides a balance between current handling and noise performance. Verify that the system logic levels are compatible with the 2.7 V to 5.5 V VLOGIC range. Consider the thermal resistance of the TSSOP-14 package for heat dissipation in enclosed designs.

Digital Potentiometers Part Context

This part belongs to the AD5293 family of single-channel digital potentiometers. Variants within the series differ primarily by nominal resistance values, such as 20 kΩ and 100 kΩ options. All variants share the same 1024-position resolution, SPI interface, and 14-lead TSSOP packaging form factor.

Digital Potentiometers Replacement Considerations

Direct substitutes include other AD5293 variants with different resistance values, such as AD5293BRUZ-20-RL7 or AD5293BRUZ-100-RL7, provided the circuit design accommodates the change in nominal resistance and associated bandwidth characteristics.

Digital Potentiometers FAQ

What is the maximum serial clock frequency supported by the AD5293?

The device supports serial clock frequencies up to 50 MHz.

How does the Resistor Performance Mode affect tolerance?

In Resistor Performance Mode, the device guarantees a calibrated nominal resistor tolerance of ±1%, compared to ±20% in Normal Mode.

Can the AD5293 operate with bipolar signals?

Yes, dual-supply operation at ±9 V to ±16.5 V enables ground-referenced bipolar signal adjustment.